Ebike Battery New Invention, 36V, 48V, and 72V Ebike Battery. E bike battery 36v

Ebike Battery New Invention, 36V, 48V, and 72V Ebike Battery

Ebike Battery New Invention, 36V, 48V, and 72V Ebike Battery– This Ebike Battery New Invention is going to blow your mind; because using this circuit you can make 36V, 48V, 72V, or even a higher voltage Ebike battery. And I am going to share with you every bit of information, it’s designing, Proteus simulation, soldering, and practical testing. I know you might be thinking; why have I connected 4 battery packs? Why not a single battery pack? Is it cost-effective? Well, you will get answers to all your questions. So, let me start by telling you why I needed to make this in the first place?

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Large battery packs like these are very expensive and for beginners, it’s hard to make a 36V or 48V, or 72V Ebike battery. Because connecting these so many lithium Ion Batteries in series and parallel combinations and then connecting them to a single BMS “Battery Management System” is the hardest job. I myself, when I built my first Trike Electric Scooter for performing some experiments; I used 4 Lead Acid batteries in series to get 48 volts. Of course, these were expensive and too heavy.

Anyhow, at that time this was the easiest solution that I could think of. Even with this easiest solution, the next issue which I faced was charging this 48V battery pack. So, I bought myself a 48V charger which is expensive and not easily available like 12V adaptors.

I ordered this online and then I had to wait for 3 days. Anyway, I performed all my experiments, first I started with a single Hoverboard BrushlessMotor, I successfully controlled it using a throttle handle and then using two 500Watts controllers I controlled two Brushless motors using the same throttle handle.

Next, I studied different Battery management system modules. And I built myself 3S and 4S Lithium Ion Battery Packs as these were easy to start withand moreover at that time I only needed 3S and 4S battery packs.

You can read my article on how to make 3S and 4S lithium Ion Battery packs, I have pretty much explained everything the connections diagram, welding using my designed spot welding machine and I have also explained how to do soldering if in case you don’t have a spot welding machine. So, if you are just starting with Lithium Ion battery packs then you should read my previous articles.

Anyway, after practicing for a while; finally, I was ready to make a 4S lithium Ion Battery pack for my Racing Drone as I was tired of using Lipo batteries. Lipo Batteries could hardly give me 5 to 6 minutes of flight time while my designed 4S lithium Ion battery pack gave me 30 minutes of flight time.

Based on my previous knowledge and experience, I built this 48V battery pack. This is cost-effective and can be easily built by anyone, and this 48V battery pack can be charged using a 12V adopter or a solar panel.

If you make a large 48V battery pack like this then you will need a 13S BMSwhich is available in the range of 3000 to 4200Rs on Pakistani online stores and it’s also quite expensive on Amazon. While on the other hand 3S and 4S BMSmodules are quite cheap. I am going to need four3S BMS modules which will cost me only 1600Rs or 7.17 USD. So, it will save me 2600Rs. And if you purchase these 3S BMS modules on Amazon then it will save you 50USD. Even if you search for the cheapest 13S BMS modulestill you will be saving yourself a lot of money.

So, using these 3S BMS modules I built myself these 3S Lithium Ion Battery Packs. You can read my article on how to make 3S and 4S lithium Ion Battery packs using 3S and 4S BMS modules. Anyway, now I can connect these 4 battery packs in Series to get 48 volts.

For this I designed this Semi-automatic control circuit. Its job is to connect all these batteries in series when needed to power up the Electric Bike or Electric Scooter and to charge the battery packs using a low-cost 12V adaptor. You don’t need a 50V or a high volt charger. A 12V and 3 to 4 amps adaptor is more than enough or if you want you can also use a solar panel. Now, you might be thinking how am I charging a 48V battery pack with a 12V adaptor? Well, it’s simple let me explain this by connecting all the 4 battery packs.

I have designed this circuit in a way that when this switch is OFF, all the batteries are connected in Series, and on the output, I get 48 volts.

And when I turn on this switch then all the batteries are connected in parallel. Now, I can use my 12V adaptor or a solar panel to charge all the batteries. At the same time, you can either charge the batteries or use them to power up the Ebike. This limitation is on the BMS side, I have already explained this in my previous video and article.

Anyway, this is a fully working prototype model. If you don’t like using the relays, then you can use power MOSFETs to implement the same concept. This circuit works with 1s, 2s, 3s, 4s, 5s, 6s, 7s, 8s, 9s, 10s, 11s, 12s, 13s, 14s, and so on. It depends on you how much voltage you need on the output.

When it comes to troubleshooting of this 48V battery pack it’s very easy. You can individually check each battery pack and if there is something wrong you can replace that battery pack with a new one or you can simply replace the faulty cell and you are good to go.

While on the other hand if one or more cells are damaged in a large battery pack then you will need to de-solder all the cells to find the faulty cells, which is really a tedious job.

Now, you know the advantages of this new 48V Ebike battery system, and now I am going to explain its simulation, PCB designing using Altium Designer, Online order placement on JLCPCB, Soldering, and practical testing. So, first, let’s start with the simulation.

V Battery Pack Proteus Simulation:

Before designing the PCB, I designed this simulation in Proteus. Let me play this simulation.

when the button is OFF the circuit is completely dead and on the output it gives 48 volts, right now you can see 44.4 volts but when the batteries are completely charged you will see 48 volts, I already demonstrated this. So, when the button is OFF the circuit consumes no electricity and you get full output as all the battery packs are connected in series.

When the switch is turned ON, all the batteries are connected in parallel and on the output you will see 11.1 volts. This voltage may vary depending on how much charge is available. Anyway, when the switch is ON simply connect your 12V adapter or solar panel to charge all the 4 lithium ion battery packs. So, after successfully implementing this idea in Proteus, then I switched over to Altium Designer for designing the PCB.

V Battery Pack PCB designing in Altium Designer:

Before creating the schematic and designing the PCB in Altium Designer, first I started off by searching the components on the world’s fastest components search engine Octopart. I selected the desired components with footprint models and used them for creating the schematic as per the simulation. I already have a very detailed video on how to make a schematic and PCB using Altium Designer.Anyway, then I switched over to the PCB designing document, I defined the PCB board size and re-arranged all the components.

Using Altium Designer you can automatically route all the wires. But I did it manually. I increased the width of the wires and I also applied solder to the top and bottom traces to increase the current carrying capacity as most of the current will be following through these copper traces.

I have used a total of six XT60 connectors. These 4 connectors on the bottom side are used to connect the four battery packs. From the middle one, we get the output to power up the Electric bike or Electric Scooter. And the one on the top is used to charge all the four battery packs using a 12V adaptor.

Finally, before generating the Gerber files, I activated the 3D layout mode by clicking on number 3 on the keyboard. I double checked all the connections and once satisfied. I again activated the 2D layout mode by clicking on number 2 on the keyboard. Finally, I was ready to generate the Gerber files.

Generate Gerber Files using Altium Designer:

For this click on the file menu and then go to Fabrication Outputs and click on the Gerber Files.

On the units tab select Inches and on the Format tab select 2:3.

Then click on the Layers tab, by default no layers are selected, so click on the Plot Layers and select Used On.

Then click on the Drill Drawing tab and select Plot all used drill pairs in both sections.

Finally, click on the Ok button to generate the Gerber files.

Next, you will also need to generate the NC drill files. For this go to the File Menu and then to Fabrication Outputs and select NC Drill Files.

Select inches and Format as 2:3. Then click on the OK button to generate the NC Drill Files.

Now, I have the PCB Gerber files and the NC Drill Files. Right click on the project name and select explore this will open the project folder.

Open the Project Outputs folder, now, these are the output files that we need to send to the PCB manufacturing company.

Convert your Project Outputs folder to WinRAR before you send it to the PCB manufacturing company. As you can see in the image below.

Online Order Placement on JLCPCB:

For the Online order placement I am going to open the JLCPCB official website.They offer extremely cheap prices, you only need to pay 2 dollars for 1 and 2 layers PCBs of 100x100mm size.

For the same price, you can also order 4 and 6 layers PCBs of 50x50mm size. 5 PCBs for only 2 dollars it’s quite affordable. Besides this JLCPCB also offers PCB Assembly and 3D Printing Services. Anyway, drag and drop the PCB Gerber files WinRAR folder or Click on the Add Gerber File Button.

It automatically detects the number of layers and the board dimensions. Select the number of PCBs you want to order, you can change other details as per your requirement, in my case I am going to change the PCB color and everything else I will leave to their default values.Now, I am going to click on Save to Cart button.

These are the PCBs I received from JLCPCB. As you can see the quality is really great. The silkscreen is quite clear and the Black Solder mask looks amazing.

The components placement and soldering:

For the components placement and soldering watch the video tutorial on my YouTube channel Electronic Clinic or click on the link given at the end of this article. For the soldering I used the ATETool AE689 Soldering Station.

After completing the soldering, I double-checked all the connections using my Andonstar digital microscope. Anyway, you can see I am done with the soldering and as you can see I have also soldered all the 6 XT60 connectors. Now, I am going to connect a 12V adaptor to check if all the relays are working. Great! by turning ON and turning OFF the switch I am able to control all the relays.

Practical Testing:

The 500 watts Brushless DC motor controllers wiring I have already explained in my previous article on the Trike Electric Scooter. I am using the same 500 watts controllers, the same throttle handle, and the same Hoverboard motors. The only difference is, this time I am using a 48V Lithium Ion Battery Pack. So, let’s go ahead turn on the switch, and start controlling the motors.

This is simply amazing. I just built myself the cheapest 48V battery pack using low-cost 3S BMS modules. And I can charge this 48V battery pack using a 12V adaptor or a Solar Panel. And one more thing, if you want more current and more backup time then you can connect multiple lithium Ion batteries in parallel. So, that’s all for now.

Electric Bike Battery Range: How Far Can I Go?

One of the most common questions for ebike buyers is about range, or how far you can go on a single battery charge.

The answer to this question usually is “well, it depends.”

It Depends on What?

The range the battery will give you depends on the capacity of the battery, and on the nature of the ride or trip.

That is, it depends on the nature of the battery in terms of its power and capacity to store energy, and how much energy you are using during the ride.

Essentials of Electric Bike Batteries

Let’s start with some basic understanding of what ebike batteries are and why different batteries get different ranges.

Today’s ebike batteries are made of lithium-ion cells. It’s the same technology you have in your cellphone, many consumer electronics and electric cars.

Inside the electric bike battery, there are multiple battery cells. Individually, these cells look much like the AA batteries you might put in a flashlight.

The cells get wired together to create one battery.

The quality of the electric bike’s battery cells do matter. Look for ebikes with batteries made of cells from top known brands like Panasonic or Samsung. they’ve been at this for a while, and make lithium-ion batteries for a range of applications.

ebike, battery, invention, bike

The power (speed) and capacity, or amount of energy available in your battery, is determined by the size and number of cells, and how they are linked together.

How do you know what speeds and distances your ebike’s battery is capable of? Understanding the battery’s specifications will help.

Electric Bike Battery Specifications

Ebike battery specifications will be presented to you by three primary factors:

  • Volts (power, speed)
  • Amp hours (how much energy can be delivered)
  • Watt hours (maximum capacity)

What are Volts?

Volts refers to the amount of power, or speed at which electrons can move through the system. The higher the volts, the faster the battery can spin your motor and wheels.

Volts matter because it they you a little more about the speed abilities of the battery and motor.

36-volt and 48-volt batteries are most common on ebikes. While 36-volt batteries are common on smaller, lighter and low-budget ebikes, the 48 volt batteries best suited for fat tire electric bikes and for getting to speeds of 25 miles per hour.

ebike, battery, invention, bike

Larger voltage batteries, like 52 volts are generally overkill for most ebike uses, and are more suited to ‘scooter’ or ‘motorcycle’ power and speed requirements.

48-Volts is perfect for most ebikes, especially fat tire electric bikes!

What are Amp-Hours?

You will also see batteries specified for Amp-Hours. Amp-hours tell you how much energy can be delivered, over time. An amp is how much energy flows per second, an amp-hour is how much energy flows per hour.

In short, Amp-hours are how much energy can be moved from the battery to your electric bike motor over time. This is a strong indicator of the potential range of your ebike.

Together, voltage and amp-hours tell you about the potential speed you can ride at, and how much energy the battery can provide over time.

Ebike batteries generally range in amp-hours from 10 AH to 21 AH.

Remember: amp-hours are a strong indicator of the amount of energy the battery can provide on a single charge.

So How Far Can I Go On My Ebike Battery?

This is where the volts and amp-hours help, because we can multiply them together and get Watt-Hours, which is a good indicator of the overall Capacity of the battery, and can be compared across batteries with various volts and various amp-hours. The higher the Watt-Hours, the higher the capacity.

Volts x Amp Hours = Watt Hours

And capacity is what really tells us more about how far you can go.

Watt Hours = Capacity

Here’s a rider who benefits from more watt-hours on his long electric bike rides up in hilly Summit County, Colorado:

For example, let’s say we have a 48 volt battery with 14.5 amp-hours. The capacity of this battery is 696 Watt-hours.

48 Volts x 14.5 Amp Hours = 696 Watt Hours

Or, let’s say we have a 48 volt battery with 19.2 amp hours. This battery has a capacity of 922 watt hours.

48 Volts x 19.2 Amp Hours = 922 Watt Hours

Same voltage, but 32% more capacity. That means, all other things equal, you could go 32% further with this battery.

32% more range? Nice!

So What Does Watt-hours and Capacity Indicate The Range of My Ebike?

The battery capacity has a direct influence on the potential Range of the electric bike.

If we know the battery Capacity, and we can start to estimate the range, depending on how many watt-hours you are using per mile of riding.

Actual use of your battery’s capacity. and your resulting range. depends on a lot of factors, including how hilly your route is, how much you pedal, reliance on higher pedal assist modes, use the throttle, your weight, the amount of wind, and more.

How much energy are you using from the battery? On the low end, your fat tire ebike is going to use anywhere from 10 or 15 watt hours per mile. that’s with steady pedaling and some moderate pedal assist.

On the higher end, if you are using a lot of throttle and higher pedal assist modes, you’ll be using 20 to 25 watt hours per mile, maybe even more.

So let’s say you like to pedal and use a moderate pedal assist mode of 3 or 4 most of the time and are traveling over moderate terrain. You are likely using about 15 watt hours per mile.

That means your 48 volt, 14.5 amp-hour battery. with a total of 696 watt hours. will give you a range of 46 miles at that usage level.

696 watt hours / 15 watt hours per mile = 46 miles range

Or, let’s say you really like to accelerate fast with the throttle, and go fast with a steady pedal assist level of 5. You are likely using at least 20 watt hours per mile. That gives you a range estimate. on the same battery. of 35 miles.

696 watt hours / 20 watt hours per mile = 35 miles range

That’s over ten miles of range difference, so you can see that your riding style really does matter.

Now, think about those bigger amp-hour batteries. A 48 volt battery with 16 amp hours has 768 watt-hours. This will boost your range estimates up to 51 miles at that lower pedal assist usage, and 38-40 miles for faster acceleration and speedy trips.

Want even more capacity and range? A 48 volt 21 amp-hour battery has over 1000 watt-hours. The range on this battery is another 31% bigger than the 48 volt 16 amp-hour battery,

With this battery, you’ve easily got a range of 67 or more miles at moderate pedal assist modes, and an ample 40-50 miles if you are using the throttle and pedal assist more aggressively.

Here’s a summary of common ebike battery sizes and range estimates:

So What Capacity Battery Do I Need For My Ebike?

Well, that depends. Sorry, just kidding!

Jokes aside, it really does depend on the type of riding you plan to do.

If you are doing mostly short, local trips, a smaller capacity battery should be just fine, though you may have to recharge more frequently and sacrifice some speed and power.

If you are planning to commute, or do longer rides for fun, a larger battery capacity will ease any ‘range anxiety’ and reduce the frequency that you need to recharge your battery. Need to recharge a lot? Get a high speed electric bike battery charger to reduce charging time.

All that said, it’s often better to go with a larger battery than you think you will need, so you have maximum power more of the time. You can also buy a spare or replacement electric bike battery.

Some words of caution: A lot of ebike brands will cut corners to keep their a little lower and profits a little higher. Often, that’s in the battery quality and size. Small cuts in battery size and quality might save you a few hundred dollars, but you sacrifice the long term fun and performance of your ebike.

ebike, battery, invention, bike

Here’s another part of the FattE-Bike difference: We provide top quality ebike batteries with appropriate capacities, so you get where you want to go on your ebike. and back.

Ready to get an ebike with excellent speed and range? Shop Now.

How Long Does It Take to Charge a 36-Volt Ebike Battery? An Ultimate Guide

An ebike’s battery is one of the most important parts of an e-bike because it supplies power to the motor and helps run the e-bike. The battery comes in different sizes 36v, 48v, 52v, and 60 volts.

36-volt e-bike batteries are lightweight, give good power, are good for commuting purposes, and charge in less time. Now the question must be arising in your mind i.e., How long to charge a 36v ebike battery?

Throughout this article, we have discussed 36-volt e-bike batteries: how long to charge them? And questions like how much wattage a 36-volt battery takes to charge and the cost of charging a 36v ebike battery.

Also, how you can increase the lifespan of the 36v battery by simply following some charging tips and what factors affect the charging time of an e-bike battery.

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How Long to Charge a 36v Ebike Battery? Explained

Charging time for an e-bike battery depends on several factors, such as the battery’s size and capacity, the charger’s power, and environmental conditions. For a 36-volt e-bike battery, you need a 36-volt charger.

To charge a 36v ebike battery, You must use a charger compatible with a 36-volt e-bike battery or recommend by the bike manufacturer.

In general, charging a 36v 12ah ebike lithium-ion battery from 0 to 100 takes 4 to 6 hours if you charge it with a 3 Amp charger.

You can calculate the charging time for any ebike battery by using the formula below:

Charging time= Battery AH/Charger Amp

For eg: Charging time for 36v 12ah battery = 12ah/3a = 4 hours
Charging time for 36v 10ah battery = 10Ah/2A = 5 hours
Charging time for 36v 12ah battery = 12Ah/2A = 6 hours
Charging time for 36v 15ah battery = 15Ah/3A = 5 hours
Charging time for 36v 20ah battery = 20Ah/4A = 5 hours
Charging time for 36v 20ah battery = 20Ah/5A = 4 hours

As you can see charging time also depends on the size of the battery (the ampere) and the charger’s capacity (Amp). If you use a high-power charger i.e., 5 Amps, it will take less time to charge an e-bike battery as compared to a low-power i.e., 2 or 3 Amp charger.

Charging time also depends on the state of the charge; if your battery is partially charged, it will take less time to charge.

Avoid overcharging an e-bike battery; it damages the battery and reduces its lifespan. However, you should give the battery 11–12 hours of charge if charging it for the first time to ensure that all cells are evenly charged.

What charger should I use for charging a 36v battery?

Each e-bike is different in terms of capacity and size of the battery, so every bike requires a separate charger. To increase the battery’s lifespan, make sure you use a compatible charger suitable for a 36-volt e-bike battery.

Using the wrong charger can permanently damage the battery and affect its lifespan. It is better to use a charger that is recommended by the manufacturer or brand of an e-bike. Make sure that the voltages of the charger and the battery are matched and compatible.

So, Always charge your 36v ebike battery with a 36-volt charger with 2 or 3 Amp.

How much electricity does it take to charge a 36v battery?

Wattage is an international unit that is used to measure the amount of energy the bike is required to operate on. The higher the wattage, the better performance the bike will give.

In general, a 36v 13ah ebike battery takes around 500 watts to charge. One important thing to note here is that when a 36-volt battery is at 100%, it is considered at 42.0 volts.

You can calculate the wattage of an electric bike by simply multiplying the volts (V) and ampere hour (Ah).

Example: An electric bike with a 36-volt battery with 15Ah will take 540 watts to fully charge i.e., 36 volts x 15 amps = 540 watts.

How much does it cost to charge a 36-volt battery?

Several factors determine and affect the cost of charging an electric bike, such as the electricity in a particular area, the state of charging, and the capacity and voltage of the battery. Charging an e-bike battery is still a cheaper option than filling the tank of a motorbike.

In general, charging an e-bike battery costs about 0.15 to 0.25 per kilowatt-hour. If your battery is fully depleted, it will cost more to charge than if it is partially charged.

You can calculate the cost of e-bike charging by simply multiplying the kilowatt-hour capacity of the battery by the price of electricity per kilowatt-hour.

Is a 36-volt battery enough for an ebike?

Yes, 36-volt bikes are enough for beginner riders and for riding on flat roads. Most electric bikes come with a 36-volt battery. It is cheaper and lighter compared to a 48-volt battery.

The basic 36-volt batteries offer 250 watts for their battery, which means you can travel up to 18–28 miles per hour. 36-volt bikes are preferred and well-liked by beginner riders as they give good power and range and are also affordable.

If you are buying an e-bike for the first time and you are a lightweight person or a beginner, this 36-volt bike is a good option for you as they are good for commuting purposes, and for riding on flat surfaces, they give a good runtime.

How to properly charge a 36v ebike battery?

Bittoo Gupta

I am the founder and editor of The Bike Fetcher, a passionate E-Biker. My passion for E-bikes led me to build this blog site where I share electric bike news updates, my e-biking experience, e-biking tips, e-bike battery tips and help people to get the best e-bike. Feel free to contact me on my social accounts or through the contact form.

The Complete Guide to E-Bike Batteries: Care, Maintenance, and Storage

At the risk of being obvious: an e-bike without a battery is just a bike. But that said, not just any battery will do.

An e-bike battery is responsible for how much power can be delivered to your motor, translating into how much assistance your e-bike gives you on rides. It’s also among the most expensive single components of a bike, with high-quality replacements typically costing several hundred dollars. Because of this, learning about e-bike batteries is critical to getting the most out of your e-bike experience — and the most bang for your buck.

Here’s what we’re about to go over:

How Does An Electric Bicycle Battery Work?

The battery stores all the electrical energy that will eventually be sent to your motor. E-Bike motors don’t have any energy of their own, so the battery is what makes the whole electrical system possible.

E-bike batteries have to be powerful enough to support the motor throughout a typical ride. While you do need to charge your battery regularly, a quality e-bike battery shouldn’t interrupt your commute or sightseeing tour by powering down before your ride is over.

Magnum E-Bike batteries are made of a series of advanced lithium-ion cells. Each cell is like a mini battery; they join together with the other cells to create a battery powerful and long-lasting enough to take you where you need to go.

Volts, Amp-Hours, and Watt-Hours: What Do They Mean?

Voltage refers to the potential power of a battery. For example, a 48V battery is more powerful than a 36V one. Technically speaking, voltage measures the pressure that allows electrons to flow. Similar to water pressure from a hose, the higher the pressure, the more powerful it is.

On an e-bike, the voltage of the battery and motor have to be compatible. Using a battery with a lower voltage than the motor can handle is a waste of potential motor power. Conversely, using a battery with more voltage than the motor can use may cause damage to the motor.

For similar reasons, your battery’s charger needs to be rated at the same voltage as the battery.

If voltage is like water pressure in a hose, amperage is the amount of water flowing. Amp-hours (Ah) refers to how much energy a battery can provide in one hour. So the more amp-hours there are, the longer a battery can keep the motor running. E-Bike batteries typically have between 8Ah and 15Ah.

To combine these two metrics into one simple number, batteries are often rated using a single metric called watt-hours (Wh). Watt-hours are calculated by multiplying voltage by amp hours. For example, a 48V 15Ah battery would have 720Wh (4815 = 720).

It follows that a 36V 20Ah battery would also have 720Wh — but the similarities between those two batteries could end there. To get all the details of what makes a battery the right choice for your e-bike, you need to look deeper.

Qualities Of The Best E-Bike Batteries

There are many e-bike battery makers out there! So what’s the difference between a high-quality battery that will help you ride farther and a cheap battery that just doesn’t perform?

Optimal Materials

Not long ago, most batteries were made from heavy, inefficient, and unsustainable materials like lead-acid or nickel-cadmium. At Magnum, we use the latest lithium nickel cobalt manganese (Li-ncm) battery technology.

Battery Management System (BMS)

The battery management system in each Magnum E-Bike battery controls the individual performance of each battery cell. BMS makes sure that each smaller cell drains, charges, and works the same as others. Without an effective BMS, e-bike batteries would be inconsistent, failing to deliver predictable power to the motor.

Like any hardware, batteries become worn over time. BMS helps extend battery lifespan by avoiding the main causes of battery deterioration: overcharging and excessive depletion. Cells that overcharge get fried and lose performance. Similarly, when batteries drain too much energy and can’t properly recover it, they start to fail. BMS regulates charging and energy deployment across every individual cell, helping the overall battery to perform better and for longer.

Battery Cycle Lives And Long-Range Performance

The number of times you can charge and deplete (discharge) the battery completely before it starts to lose capacity is called its cycle life. It’s normal for batteries to lose performance over time, but higher-quality and better-made batteries have larger capacity and longer range, resulting in increased cycle lives.

Higher-quality batteries typically have a larger capacity and longer range compared to cheaper models. But it’s difficult to produce batteries with high amp-hours and watt-hours that still fit into the slim packaging necessary for a balanced, aerodynamic e-bike.

It’s important to note that batteries continue to function even after they start to lose some efficiency. When batteries have surpassed their cycle life, you may notice your ride range decreasing, needing a charge after fewer miles.

At Magnum Bikes, the cycle life of our advanced Lithium-NCM battery is 700 cycles. Once our batteries have powered riders through 700 charges and discharges, our battery still performs at around 80% of its original level. With proper care, you can typically get 800-1000 charge cycles out of your Magnum battery — roughly two to five years, depending on how frequently and how far you ride.

Best Tips To Maintain Your E-Bike Battery

As the most expensive part to replace on your e-bike, it’s worthwhile to take the extra time and effort to keep your battery in good health. For that reason, even seemingly obvious tips bear repeating.

Follow these recommendations to get the best performance and life out of your e-bike battery.

  • Charge the battery before it gets to 30% life. Batteries are at their healthiest when they stay at or above a 30% charge level. When you’re out on a ride, watch your battery’s charge level. It’s shown on your e-bike’s display monitor. When you get down to 20% or even 10% battery, you’re at risk of losing power before you get back to your charging station. Not only does that put you at risk of unassisted pedaling for a long or hilly journey back home, but it also puts unnecessary strain on the battery. Over time, this speeds up the natural process of deterioration. If you go for extended rides, it may just be a fact of life that you’ll drop into the low battery levels. Don’t sweat it — just know that your battery will last a bit longer if it stays topped off.
  • Don’t charge or use the battery on the bike while it’s hot. Batteries can get hot for a number of reasons. On really warm days, the outside temperature can cause a battery to overheat. Climbing steep terrain can cause the motor to get hot — and potentially the battery, too. Another cause of a hot battery is using a charger with a higher voltage than the battery. But whatever the reason, your response to a hot battery should always be the same: let it cool down before continuing use or charging.
  • Don’t charge immediately after use. Even if your battery doesn’t feel hot, let it rest when you get home after a ride. You won’t have to wait long — batteries recover from use very quickly. You can use the time to hang up your helmet, remove your shoes, and maybe even give the bike a quick clean or tune-up. In less than 5 minutes, you can charge your battery to get ready for your next ride.
  • Don’t use it immediately after charging. Are you seeing a pattern? When it comes to e-bike battery care, patience is a virtue! If you’re leaving on a ride right away, unplug the charger for just a few minutes before you head out. This valuable reset gives your battery time to prepare to transfer energy to the motor on your ride.
  • Unplug the battery when fully charged. When your battery has reached 80% to 100% charge, go ahead and unplug the charger. Don’t worry; your battery will hold the charge until your next ride! This is important because while you can’t actually overfill your battery with power, you can strain the battery by continuing to charge it after it’s full.
  • Keep your battery at the right temperature. When you’re not riding, store the battery around room temperature: 68°F/20°C or slightly lower. Feel free to store your bike in a weatherproof garage or shed, protected from the elements — but if the temps dip much higher or lower than 68°F/20°C, take the battery indoors.
  • Don’t get your battery wet. This is true of any battery, really! Your battery has a sealed, waterproof protective cover that keeps it protected from the rain while you ride. Where you need to be careful is in cleaning and storing your bike and its battery. You might look to a pressure washer to get dirt and grime off your bike quickly, but the intense jet of water can get past the seals, damaging the inside of the battery. And when you aren’t riding your e-bike, store it inside. Excessive and continuous exposure to rain and snow can compromise the waterproof housing over time.
  • Travel safe. Whether you’re traveling with your e-bike on a car rack or in a bike box for shipment, be sure to remove the battery beforehand. This protects it from damage or accidental loss. Remember that you also need to protect that battery from rain and snow! So removing it before putting your bike on a car rack is the best way to keep your battery dry while you travel.
  • Know what to expect for winter performance. In addition to protecting your battery from snow and excessive cold, be aware that e-bike batteries are less efficient in the cold. This means they may deliver a reduced mileage range in extremely cold temps. Try to shorten your rides, or at least ensure that you’re able to charge your battery frequently for extended rides. But don’t worry; the performance will bounce back when warmer temperatures return.
  • Always use the right charger. Your e-bike comes with a charger made specifically for that model; use it! It’s critical for battery health that the charger and battery are compatible and work with the same voltages. Otherwise, at best you’ll see extended charge times — and at worst, you can fry the battery.

Signs It’s Time To Replace Your Battery

Even with impeccable care, your battery will need to be replaced eventually. Once it’s surpassed its cycle life, the battery will begin to lose capacity. When this happens, a “full charge” will really only get you to about 80% of the charge level that the same battery got when it was brand new.

Having read all about your battery by now, you’ll probably recognize the signs early: reduced range or inconsistent performance. This is a normal part of your battery’s life. However, if you notice these signs early (for example, only a year or couple hundred cycles into using your battery), take your bike to a shop or call the manufacturer for more specific information.

When the time comes, make sure to replace your e-bike battery with one crafted for your specific e-bike make and model. As we mentioned earlier, this part is a significant investment, so it’s critical to make the right purchase! Consult your manual or call your manufacturer with any questions.

Take Care Of Your Battery And It’ll Take Care Of You

There isn’t a whole lot to remember for a healthy e-bike battery! Just keep an eye on your battery life when you’re riding, charge it when needed (but don’t forget to unplug when it’s done!), store it properly, and transport it safely. By following these steps to support long-lasting battery health, you’ll get the most out of your e-bike’s battery for many rides to come.

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